The instrumentation of unfrozen water content: Considering the importance of conversion curves August 21, 2026
The instrumentation of unfrozen water content: Considering the importance of conversion curves August 21, 2026
HomePublicationsCrops & SoilsIssuesCrops & Soils: Volume 57, Issue 3Celebrating 30+ Years of Certification May 1, 2024 We recognize, congratulate, and thank the following professionals who have been certified for 30 or more years. Thank you for your continuing dedication, service, and commitment to excellence.AlaskaSparrow, Elena, Fairbanks, AK (CPSS)AlabamaPage, Sanderson, Fairhope, AL (CPSS)Simmons, Charles, Moulton, AL (CPSS)ArkansasSimmons, Eldon, Jonesboro, AR (CCA-AR)Whitby, C. Hugh, Wynne, AR (CCA-AR)Wood, Dennis, Wynne, AR (CCA-AR)CaliforniaArroues, Kerry, Hanford, CA (CPSS)Bruice, Carl, Rocklin, CA (CCA-WR, CA-NSp)Davis, Marie, Georgetown, CA (CPSS)Davis, Sidney, Georgetown, CA (CPSS, CPSC)Duckering, Dale, Clovis, CA (CPSS, CCA-WR, CA-NSp)Feenstra, Glenn, San Jacinto, CA (CCA-WR, SSp, MM, CA-NSp)Grangetto, Edward, Escondido, CA (CCA-WR, SSp, CA-NSp)Perry, Donald, Hollister, CA (CCA-WR, CA-NSp)Prichard, Terry, Oakdale, CA (CPSS, CCA-WR, CPAg, CA-NSp)Quist, Aron, Blythe, CA (CPSS, CCA-WR, CPAg, CA-NSp)Rahn, Bryan, Angwin, CA (CPSS, CCA-WR, CPAg, CA-NSp)Rittiman, Carl, Mendocino, CA (CPSS)Simmons, Ward, Riverside, CA (CCA-WR)Taskey, Ronald, Atascadero, CA (CPSS, CPSC)Wiley, Joel, Aromas, CA (CCA-WR, CA-NSp)ColoradoCarlson, Kenneth, Englewood, CO (CPSS)Nyenhuis, James, Fort Collins, CO (CPSS)Smith, Peter, Dacono, CO (CPSS, CPSC)ConnecticutCastanho, Martina, East Lyme, CT (CPSS)Fortunato, Donald, East Lyme, CT (CPSS)DelawareDownard, Ralph, Wilmington, DE (CPSS)FloridaBrown, Mark, Gainesville, FL (CPSS)Cooper, James, Tallahassee, FL (CPSS)Fox, Thomas, Yulee, FL (CPSS)Sawka, Gregory, Fort Pierce, FL (CPSS)Spindler, James, Lakeland, FL (CCA-FL, CPSS, CPAg)Sullivan, Kevin, Vero Beach, FL (CPSS, CPSC)GeorgiaKleto, Pete, Grantville, GA (CPSC)Kring, Timothy, Sugar Hill, GA (CPSC)Malik, Hameed, Martinez, GA (CPSS)Spotts, James, Atlanta, GA (CPSS)IowaAnderson, Barry, Ames, IA (CCA-NE, PASp)Bergeson, John, Runnells, IA (CCA-IA, 4R NMS, RMS)Franke, Quintin, Neola, IA (CCA-IA)Gomes, Shannon, Decorah, IA (CCA-IA, CPSS)Hillyer, Thomas, West Liberty, IA (CCA-IA)Kassel, Paul, Spencer, IA (CCA-IA, CPAg)Louscher, Scott, Paullina, IA (CCA-IA)Marlow, Michael, Bondurant, IA (CCA-OK)Mechler, Dean, Spencer, IA (CCA-IA)Metzger, Kurt, West Bend, IA (CCA-IA)White, Michael, Indianola, IA (CCA-IA, CPAg, SSp)IdahoMengel, Denny, Boise, ID (CPSS)IllinoisBellm, Robert, Eagarville, IL (CCA-IL)Beseke, Alan, Beecher, IL (CCA-IL)Bramstedt, Mark, Yorkville, IL (CPSS)Cate, Bradley, Savanna, IL (CPSS, CPSC)Dowell, Mark, Urbana, IL (CCA-IL)Elmer, Steven, Geneseo, IL (CPSS, CPSC)Ferrie, Kenneth, Heyworth, IL (CCA-IL, 4R NMS)Fitch, Bryan, Herrin, IL (CPSC)Follis, Robert, Galva, IL (CCA-IA)Forsberg, Roger, Clinton, IL (CCA-IL)Gaines, Douglas, Worden, IL (CPSS)Gucker, Douglas, Cisco, IL (CCA-IL)Huber, Ted, Windsor, IL (CCA-IL, 4R NMS)Kelsey, Patrick, Aurora, IL (CPSS, CPSC)Klemp Bosko, Mary, Wadsworth, IL (CPSS)Lenz, Gary, Hanna City, IL (CPSS, CPSC)Logan, Edward, Griggsville, IL (CCA-IL)Lohse, John, Rochester, IL (CPSS)Monken, Edward, Carlyle, IL (CCA-IL)Niemeyer, John, Breese, IL (CCA-IL, 4R NMS)Paul, Lyle, DeKalb, IL (CCA-IL)Schonert, Larry, Catlin, IL (CCA-IL)Shier, Marion, Chenoa, IL (CCA-IL)Smith, J. David, Windsor, IL (CCA-IL)Tarter, Kevin, Canton, IL (CCA-IL)Wambeke, Brian, Morrison, IL (CCA-IL)Weeks, Olaf, Wheaton, IL (CPSS)Wells, Robert, Bement, IL (CCA-IL, RMS)IndianaFlohr, Lewis, Frankfort, IN (CCA-IN, CPSS, CPAg)Jones, Robert, Carlisle, IN (CPSS, CPSC)McClain, Mark, Carmel, IN (CPSS, CPSC)Ralston, David, Newburgh, IN (CPSS)Wade, Steven, Linton, IN (CCA-RET, CPAg-RET, CPSS)KansasBauer, George, Hiawatha, KS (CCA-KS)Baxa, Lawrence, Ingalls, KS (CCA-KS)Ehrhart, Matt, Manhattan, KS (CCA-KS)Reneberg, Ronald, Kensington, KS (CCA-KS)Sohm, Gregory, Rolla, KS (CCA-KS)Williams, Jeffrey, Sabetha, KS (CCA-KS)LouisianaInman, Brad, Covington, LA (CPSS)MassachusettsAverill, Albert, Montague, MA (CPSS)Flaherty, Gary, Lakeville, MA (CPSS)Pickering, Edward, Cambridge, MA (CPSS)MarylandGerber, Timothy, Bel Air, MD (CPSS)Gross, Christoph, Ellicott City, MD (CPSS)Hoddinott, Keith, Street, MD (CPSC)Rabenhorst, Martin, College Park, MD (CCA-NR, CPSS, CPAg)MaineBakajza, George, Greenville Junction, ME (CPSS, CPSC)Noel, Joseph, South Berwick, ME (CPSS)MichiganMiller, Gerald, Grand Rapids, MI (CPSS)MinnesotaBalogh, James, Duluth, MN (CCA-MN, CPAg, 4R NMS)Broscoff, Kent, Howard Lake, MN (CCA-MN, CPAg)Carlson, Kevin, Pine City, MN (CCA-MN, CPAg)Crowley, Clement, Howard Lake, MN (CCA-MN)Danielson, Troy, Buffalo, MN (CCA-MN)Fasching, James, Waconia, MN (CCA-MN)Fore, Zachary, Mentor, MN (CCA-MN, CPAg)Fuchs, Dennis, Waite Park, MN (CCA-MN)Jacobs, Anthony, Lake Crystal, MN (CCA-MN)Jacobs, Brian, Alden, MN (CCA-MN)Koehler, Jeffrey, Belgrade, MN (CCA-MN)Mayer, Randy, Harmony, MN (CCA-MN)Meier, Brian, Sanborn, MN (CCA-MN)Miller, Jay, Rochester, MN (CCA-MN)Nicolai, David, Farmington, MN (CCA-MN)Scharf, Mark, Madison Lake, MN (CCA-MN)Tollberg, David, North Branch, MN (CCA-WI, CCA-MN)Vander Beek, John, Richmond, MN (CCA-MN)Whitmyer, Robert, Rice Lake, MN (CPSS)Williams, Brian, LeSueur, MN (CCA-MN)MissouriBoyles, Larry, Fisk, MO (CCA-MO)Briscoe, James, Memphis, MO (CCA-MO)Browning, Leland, Appleton City, MO (CCA-MO)Brush, Lyndon, Hartsburg, MO (CCA-MO, CPAg)DeWitt, Thomas, Rogersville, MO (CCA-MO, CPSS)Felton, Mark, Saint Louis, MO (CPSS)Flanary, Wayne, St Joseph, MO (CCA-MO, CPAg)Hoffman, C. Phillip, Trenton, MO (CCA-MO)Hoffman, Christopher, Trenton, MO (CCA-MO)Roberts, Rodney, Trenton, MO (CCA-MO)MississippiBrace, Gerald, Brandon, MS (CPSS)MontanaLarson, Michael, Bozeman, MT (CPSS)Surbrugg, J. Edward, Helena, MT (CPSS)North CarolinaBaldwin, Lawrence, Harkers Island, NC (CPSS, CPSC)Kays, Barrett, Raleigh, NC (CPSS)Lindbo, David, Pittsboro, NC (CPSS)North DakotaCihacek, Larry, Fargo, ND (CCA-ND, CPSS, CPAg)NebraskaGeis, Ronald, Newcastle, NE (CCA-NE)Larson, James, Gurley, NE (CCA-NE)Lloyd, Randy, North Platte, NE (CCA-NE)Schroeder, Larry, Omaha, NE (CCA-IA)Seybold, Cathy, Lincoln, NE (CPSS)Umland, Matthew, Jansen, NE (CCA-NE)Vrbka, Thomas, Bellevue, NE (CCA-NE)Ward, Raymond, Kearney, NE (CCA-NE, CPSS, CPAg)New HampshirePeragallo, Thomas, Rindge, NH (CPSS, CPSC)Ramborger, Terry, Peterborough, NH (CPSS)New JerseyLevine, Paul, East Windsor, NJ (CPSS)Salinas, Luis Miguel, Manalapan, NJ (CPSS)New YorkGilbert, Mallory, Troy, NY (CPSS)Hepner, Lawrence, South Kortright, NY (CPSS)Smith, Gerald, Elizabethtown, NY (CPSS)OhioBailey, Bruce, Canton, OH (CPSS)Haun, G. Wesley, West Liberty, OH (CCA-OH, CPSS, CPAg)OregonCampbell, Steven, Portland, OR (CPSS, CPSC)Kitzrow, Gary, Oakland, OR (CPSS, CPSC)Lewis, Dianne, La Grande, OR (CPSS)Ruby, Timothy, Portland, OR (CPSS)Wilson, Steven, Portland, OR (CPSS)PennsylvaniaBacon, Seth, Pottstown, PA (CPSS)Mueller, Laurel, Forksville, PA (CPSS, CPSC)Ratvasky, Timothy, Washington, PA (CPSS)Sams, Margaret, Venetia, PA (CPSS)South CarolinaDeFrancesco, Dennis, Simpsonville, SC (CPSS, CPSC)South DakotaHolm, Terry, Brandon, SD (CCA-MN)Malo, Douglas, Brookings, SD (CPSS)TexasDavol, Phebe, Florence, TX (CPSS)DeMuro, Gerald, El Paso, TX (CPSS)Janak, Edward, Fredericksburg, TX (CPSS)UtahNelson, Daniel, Syracuse, UT (CPSS)VirginiaEbodaghe, Denis, Petersburg, VA (CPSS)Sledjeski, William, Chantilly, VA (CPSS)VermontVillars, Thomas, Norwich, VT (CPSS)WashingtonGaarder, Jeffrey, Bainbridge Island, WA (CPSS)Hunner, Walter, Electric City, WA (CPSS)Palazzi, Lisa, Olympia, WA (CPSS)Shields, Walter, Seattle, WA (CPSS)Small, E. Philip, Spokane, WA (CPSS)Zupancic, John, Vancouver, WA (CPSS)WisconsinBenzel, Tracy, Mercer, WI (CPSS)Deutsch, Paul, Eagle, WI (CPSS, CCA-WR, CPAg, CA-NSp)Laing, Larry, Germantown, WI (CPSS)Liegel, Edward, Loganville, WI (CCA-WI, CPSS, CPAg, 4R NMS)West VirginiaKingsbury, David, Bruceton Mills, WV (CPSS)WyomingDeines, Steven, Pine Bluffs, WY (CCA-NE)Peak, Myra, Green River, WY (CPSS)Text © . The authors. CC BY-NC-ND 4.0. Except where otherwise noted, images are subject to copyright. 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Federal agencies announce new opportunities in weed management research, pesticide policy August 21, 2026
The instrumentation of unfrozen water content: Considering the importance of conversion curves August 21, 2026